Home / 3,311.78-4,957.95-2,321.15

Finding the Fourth Proportional to 3,311.78, 4,957.95 and 2,321.15

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Solution

The fourth proportional to 3,311.78, 4,957.95 and 2,321.15 is: 3,474.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.78 : 4,957.95 = 2,321.15 : x
  2. Step 2: Convert to fraction form
    3,311.78/4,957.95 = 2,321.15/x
  3. Step 3: Cross multiply
    3,311.78x = 4,957.95 × 2,321.15
  4. Step 4: Simplify right side
    3,311.78x = 11,508,145.64
  5. Step 5: Solve for x
    x = 11,508,145.64/3,311.78
  6. Step 6: Final answer
    x = 3,474.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.